Anthony de brynk



(No Model.) g

` A. DE BRYNK- n BRBEGH LOADING `oRmIANGE- Patented Oct. 18, 1887.

v'UNITED STATES ATHONY DE BEYNK, or

Sr. PETERSBURG, RUSSIA'.

BREECH-LOADING ORDNANCE..

SPECIFICATION forming part of Letters Patent No. 371,828, lated @ctcber 18, 1857.

Application filed November 10, 1886. Serial No. 218,497.

(No model.) Patented inv England October F10, 1856, No. 13,404, in

France November 3, 1886, No, 179,432; in Belgium November 5, 1886, No. 75,128; in Italy December 30,18r6, XL1, 335; in Austrie-Hungary March 518, 1886, No. 45,338 and No. 11,190, and in Spain January 5, 1887, No. 6,425?.

To all whom/ it may concern,.-

Beit known that 1, A. DE BRYNK, second captain Imperial Russian marine artillery, of St. Petersburg, in the Empire ofRussia, have invented a new and useful Improvement'in Guns, (for which I have obtained patents in Great Britain, dated October 20, 1886, No.

gl3,40-1; in France, November 8, 1886, No.

179,482, in Belgium, November 5, 1886, No. 75,128; in Italy, December 30, 1886, No. 835, VOL-41; in'Spaiu, January 5, 1887, No. 6,429, and in Austria-Hungary, March-28, 1886, No. L15,338 and No. 11,190,) of which the following is a Specification.

Figure 1 of the annexed drawings represents partially a longitudinal section and partially a plan of my improved gun. Fig. 2 represents a vert-ical section on an enlarged size of the screw-stopper. Fig. 3 is a plan of the same.

The gun consists of a core, A A,and a jacket, B B, firmly united together by means ofa ring, C C, and a nut, D D.

, The core A A consists of an internal tube, Which may be re-enforced by rings or cylinders shrunk upon its exterior, or by wire Wound upon its exterior Surface and under tension, or by any combination ,of the aforementioned rings, cylinders, and wire. The core contains the entire bore of the gun.

The jacket reaches only up to the middle part ofthe gun and may be a single piece of metal or made up in parts held or united together by rings or cylinders shrunk or screwed on its exterior or by wire Wound under tension.

In the rear part of the jacket B is screweda breech-cylinder, a a, which contains the locking mechanism, of ordinary or any desired construction. On the breech end of this cylinder is shrunk on its exterior a ring, G C, to which is pivoted the breech-locking niechan ism, the Whole being firmly held together by an external ring, c c, which prevents all expansion o f the rear end of the jacket and securely holds the ring C in place. On the front end of the breech-cylinder a are pins d d, to prevent the independent turning of the core. The frontend of the jacket is screw-threaded, and a ring, e e, with trunni0ns,is shrunk upon.

the jacket immediately in the rear of this 5o screw-threaded part.

Thejoint ring C has on its rear end also a screw-thread, but in opposite direction to that of the jacket. This ring has, besides, an interior shoulder or recess, f.

The nut D is double-threaded and in opposite directions. lts threaded parts do not reach entirely to its ends, but leave at each end of the nut a plain annular surface which bears upon the front end of the jacket on one side, and on the other side upon the rearend of the ring C, thus enabling the nutDto be easily centered. Two pressing or stopper bolts, hh, are lodged in the nut D, -as represented -on Figs. 2 and 3. Each of these bolts consists of three parts, 1, 2, and 8. The screw; bolt 1 is tted with a head having indeutations which correspond to the screw-threads of the ssl jacketB and ring C, respectively. The bolt The purpose of the serewstoppers h h is to prevent unscrewing of the nut D by Shooting. The jacket B is freely drawn upon the body of the gun from its breech end.

Then the nuty D is placed, and finally the joint-ring O. By

rotating the nut D the ring C and the jacket B are drawn together, and when the stopperbolts are tightly screwed down the Whole sys tem is firmly held together, and the core is `prevented from longitudinal motion, as Well as from turning, because the pins d d of the breech-cylinder enter in corresponding cavities ofthe core.

The proposed construction of the gun has for its object, first, making it possible to turn the core of the gun upon its main axis when the Wearing away or scoring of any part shall make such an operation necessary 5 second, making it possible to separate the gun into masses to facilitate transportation and in such a manner as to render it possible to reassemble and to mount them on the gun carriage Without resort to the cranes or other heavy appliances necessary for existing guns of the same size; third, making it possible to interchange the parts of one gun With corresponding parts of another one.

The interior tube of the core is made of soft steel by forging, tempering it in oil, and annealing it to the required degree. It is sufficiently thin to avoid all undue internal strains and at the same time to insure its mechanical qualities being the best possible and equal throughout its Whole mass. The dimensions ofthe re-enforcing rings or cylinders are to be made accordingly. The number of the series of re-enforcing rings or cylinders, as also the external diameter ofthe core, are determined by the condition that the core should present suflicient elastic resistance to tangential strains on the circumference of the transverse sections of the bore in shooting, and, on the other hand, that the metal of the inner tube could not be deformed after re-enforcing it by rings or cylinders or Wire.

The jacket or its parts are cast ofsoft steel, and then reheated, tempered in oil, and annealed.

By the use of a thin inner tube and re-enforcing rings and cylinders of comparatively little dimensions it is possible to manufacture guns of the largest calibers and dimensions without the aid of the big foundry and forging appliances which are unavoidable in manufacturing guns of the same kind by ordinary systems.

I claim as myinventionl. rlhe combination of the core of a gun and a separable jacket fitting over the breech part of said core and carrying the breech-cylinder for the end of the core, With a joint-ring, C, adapted to be passed over the core from the opposite end, and a nut uniting the jacket and joint-ring over the core, all substantially as specified.

2. The combination ofthe core ofa gun and ajacket fitting over the breech part of the core, with a joint-ring adapted to be drawn over the core from the opposite end, and a nut having plain annular parts on its opposite ends and screw-threaded in opposite directions to unite the j oint-ring and jacket over the core, substantially as specified.

3. The combination of the core of a gun, a jacket fitting over the breech part of the core, a joint-ring adapted to be placed over the core from the' opposite end, a nut, D, screwthreaded in opposite directions and uniting the ring and jacket, and screw-Stoppers in the nut to lock the latter in position, all substantially as specified.

4. The combination ofthe core, ajaeket fitting"over the breech-piece of the core, ajointring, and a threaded nut uniting the joint-ring and jacket, and a screwstopper for the nut, consisting of a screw-bolt having teeth corresponding with the threading on the ring and jacket of the gun, an inner nut, and a retaining-ring for the latter, all substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

A. DE BRYNK. vWitnesses:

N. Tsoi-IEKALOFF, L. Voss. 

